C21231322221311331311211312111133132313223313331322331311331333132322311211   >>    C2123132222131133131121131211113313231322331333132233131133133313232231121   <<    C21231322221311331311211312111133132313223313331322331311331333132322311213   >>      C21231322221311331311211312111133132313223313331322331311331333132322311212   >>